Last year reorgy week was after A-day so plebes could have food or other things. Since reorgy is prior to A-day this year they may still be restricted on what items they can have. That would be a good question to ask via plebe-net once R-day has passed.
I know that money and gift cards will always be welcome. Also any items that they did not take to R-day with them, but they may have found they would like to have, such as: a multi-tool, a durable watch (no metal bands), a small battery operated alarm clock, a picture frame with pictures from home (a collage of many pictures is great but no larger than an 8x10 frame), and boot socks. After Beast they are allowed to have books too.
Even during Beast you can send some limited items that aren’t edible. In the first phone call home my son asked for some boot socks and shoe inserts for his low quarters. He had to open the box in front of the cadre so they could see it wasn’t food or any other restricted items, but he was allowed to have what he asked me to send. The best thing to do is when he/she calls at the halfway point of Beast (they usually get more time to talk then), ask what they need or want.
During the first year the items I have given my son for his birthday and Christmas were very limited since they can’t have much of what a typical college kid has in his room. He ended up with mostly money.